Three-function on MMA, TIG, MIG, automatic exchange on welding. ItemMIG/TIG/MMA-200MIG/TIG/MMA-250 Input voltage( ... power saved.-Easy to arc in itiation, resistance to interference, good porce adjustment.-Good welding current, low welding spatter.-Protection for ... for various acid and basic welding electrodes.-Three-function on MMA, TIG, MIG, automatic exchange on welding.-We can produce followed ...